Davis High School scholar Helena Leal addresses the crowd at the Mexican-American Yolo County Concilio Scholarship Dinner. At left is keynote speaker Carlos Saucedo of ABC Channel 10.(Photo by Kathy Keatley Garvey)

Davis High School scholar Helena Leal addresses the crowd at the Mexican-American Yolo County Concilio Scholarship Dinner. At left is keynote speaker Carlos Saucedo of ABC Channel 10.(Photo by Kathy Keatley Garvey)

Culex quinquefasciatus, the southern house mosquito,is known for transmitting the West Nile virus, but now the Zika virus has been detected in wild-caught C. quinquefasciatus in Recife, Brazil, the epicenter of the Zika epidemic. (Photo by Kathy Keatley Garvey)

Culex quinquefasciatus, the southern house mosquito,is known for transmitting the West Nile virus, but now the Zika virus has been detected in wild-caught C. quinquefasciatus in Recife, Brazil, the epicenter of the Zika epidemic. (Photo by Kathy Keatley Garvey)